Neuropathology Flashcards

(59 cards)

1
Q

What are the two divisions of the PNS?

A
  1. Somatic

2. Visceral

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2
Q

Pathology of the ____ may lead to paresis or paralysis of a muscle or muscle group, and may be limited and show limited limb involvement.

A

PNS

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3
Q

Spasticity, + babinski, brisk reflexes and unilateral or bilateral involvement are all possible signs of ____ pathology.

A

CNS

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4
Q

PNS sensory signs are restricted to a _______.

A

dermatome

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5
Q

CNS sensory signs are complex and involve multiple _________, with a definite sensory level associated with a ______ level.

A

dermatomes; spinal

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6
Q

____ pathology may lead to autonomic dysfunction.

A

CNS

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7
Q

How is nerve conduction velocity effected in lower motor neuron damage? upper motor neuron damage?

A

less to absent; same

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8
Q

A lot of neurons can be lost before weakness is noted (T/F)/

A

TRUE

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9
Q

Smaller neuronal cross sectional area due to aging may be _______ in origin; atherosclerosis leads to poorer blood supply.

A

vascular

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10
Q

With aging, ________ control of dermal vasculature declines which leads to poor wound healing.

A

sympathetic

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11
Q

Slowed nerve conduction velocity and smaller action potentials lead to what 3 things?

A
  1. Decreased strength
  2. Sensory changes
  3. Overall slower function
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12
Q

Peripheral nerve regeneration occurs at a rate of __-__ mm/day.

A

1-5

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13
Q

What is the pathology behind charcot-marie-tooth disease?

A

extensive demyelination

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14
Q

The pattern of hammer toes, peripheral atrophy, per cavus and weakness in DF is indicative of?

A

Charcot-marie-tooth disease

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15
Q

There is no treatment to alter disease course of charcot-marie-tooth disease (T/F).

A

TRUE

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16
Q

_____ _____ _____ is the most common entrapment syndrome in the US/Canada.

A

carpal tunnel syndrome

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17
Q

_____ ______ ______ = compression induced schema and segmental demyelination of the median nerve.

A

carpal tunnel syndrome

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18
Q

CTS displays with nocturnal pain (T/F).

A

TRUE

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19
Q

How is CTS confirmed?

A

nerve conduction velocity testing

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20
Q

What is the cause of bell’s palsy?

A

latent herpes virus which becomes reactivated

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21
Q

What two populations are are higher risk of CTS?

A

pregnant women and diabetics

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22
Q

_____ _____ = unilateral facial paralysis.

A

bell’s palsy

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23
Q

What does the facial nerve innervate?

A
  1. Muscles of facial expression
  2. Stapedius muscle of inner ear
  3. Sensory and autonomic fibres for taste, tears and salivation
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24
Q

What is the medical management of bell’s palsy?

A
  1. Corticosteroid treatment

2. Protect eye

25
______ _____ _____ = entrapment syndrome caused by pressure on the thoracic outlet on brachial plexus at the inferior border of the axilla.
thoracic outlet syndrome
26
When may vascular changes occurs in TOS?
if subclavian artery is entrapped
27
TOS causes neuropraxia and _______ ______ (anterograde or distal to the lesion).
wallerian degeneration
28
Are women or men more prone to TOS?
women
29
Where might pain from TOS radiate?
neck --> face, scapula, and anterior chest
30
_______ syndrome might accompany TOS bc of vascular complications.
reynauds
31
Diabetic neuropathy is a metabolic neuropathy that effects nerves and _______ cells.
schwann
32
In diabetic neuropathy, ________ leads to abnormal microcirculation.
hyperglycemia
33
There is a clear relationship between insulin levels and diabetic neuropathy (T/F)
FALSE
34
In diabetic neuropathy, nerve _____ ______ is reduced.
growth factor
35
_________ neuropathy seen in poorly controlled diabetes, which results in distal symmetric sensory changes; paresthesia, burning sensation
hyperglycaemic
36
Clinical manifestations of diabetic neuropathy included _____ ________ polyneuropathy.
generalized symmetric
37
Diabetic neuropathy displays with _________ paresthesia.
painless
38
There is _________ motor weakness in diabetic neuropathy.
minimal
39
Diabetic neuropathy might also display with _______ neuropathies like mononeuropathies in limbs or cranial nerves,
focal
40
What is the most common cause of motor paresis and paralysis?
Guillian barre syndrome
41
When is maximal weakness reached in guillian barre syndrome?
2-3 weeks
42
How long does recovery from Guillian Barre syndrome take?
months
43
GBS is an ______ disorder.
immune
44
Is GBS more common in men or women?
men
45
_______ = lesions throughout PNS from spinal nerves to terminating fibres.
GBS
46
GBS = __________ mediated demyelination
antibody
47
In GBS, the ________ in the schwann cells are attacked by circulating antibodies.
myelin
48
In GBS there is a rapidly ascending ______ weakness and distal ________ loss.
motor; sensory
49
In GBS, will deep tendon reflexes be present?
No
50
CSF in people with GBS will show elevated levels of _____.
albumin
51
What does early and later PT involvement in GBS look like?
Early: preserve muscle and ROM Later: strengthen
52
_____ ______ ______ ______ = abnormal respones in peripheral nerves.
complex regional pain syndrome (CRPS)
53
How many levels of CRPS are there?
2
54
CRPS ___ = pain syndrome after trauma
I
55
CRPS __ = pain syndrome when trauma involved a major nerve.
II
56
______ may present as a smooth, hot, swollen joint.
CRPS
57
_______ is caused by reactivation of the Varicellazoster virus years after initial infection.
shingles
58
________ affects a single cranial nerve or dermatome.
shingles
59
Can shingles affect motor nerves?
yes, occasionally; will cause LMN signs